diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2ab083c2..efdc2bba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## Next
 
 - Add the concept of "propagatable slots".
+- Add `curie_map` as an [explicit element of the SSSOM model](https://github.com/mapping-commons/sssom/issues/225)
 
 ## SSSOM version 0.15.1
 
diff --git a/examples/schema/curie_map.sssom.tsv b/examples/schema/curie_map.sssom.tsv
new file mode 100644
index 00000000..8772e84f
--- /dev/null
+++ b/examples/schema/curie_map.sssom.tsv
@@ -0,0 +1,13 @@
+#curie_map:
+#  HP: http://purl.obolibrary.org/obo/HP_
+#  MP: http://purl.obolibrary.org/obo/MP_
+#  orcid: https://orcid.org/
+#mapping_set_id: https://w3id.org/sssom/commons/examples/issue_tracker.sssom.tsv
+#license: "https://creativecommons.org/publicdomain/zero/1.0/"
+#creator_id: orcid:0000-0002-7356-1779
+#mapping_provider: "https://w3id.org/sssom/core_team"
+#comment: This is an example file for the SSSOM for illustration only. Its contents are entirely fabricated.
+subject_id	predicate_id	object_id	mapping_justification
+HP:0009124	skos:exactMatch	MP:0000003	semapv:ManualMappingCuration
+HP:0008551	skos:exactMatch	MP:0000018	semapv:ManualMappingCuration
+HP:0000411	skos:exactMatch	MP:0000021	semapv:ManualMappingCuration
diff --git a/src/docs/spec-formats-tsv.md b/src/docs/spec-formats-tsv.md
index 6a12dc7f..49fe5dcb 100644
--- a/src/docs/spec-formats-tsv.md
+++ b/src/docs/spec-formats-tsv.md
@@ -112,6 +112,9 @@ Any prefix name used in a SSSOM/TSV file MUST be declared with a corresponding e
 
 Prefix names listed in the table found in the [IRI prefixes](spec-intro.md#iri-prefixes) section are considered “built-in”. As such, they MAY be omitted from the CURIE map. If they are not omitted, they MUST point to the same IRI prefixes as in the aforementioned table.
 
+_Note_ that as of SSSOM version 0.15.3, the `curie_map` element is part of the metadata model.
+This does not have any consequences for SSSOM users, but developers building tools based on
+the LinkML model of the SSSOM schema may have to adjust their parsers and serialisers accordingly.
 
 ## Propagatable slots
 
diff --git a/src/sssom_schema/schema/sssom_schema.yaml b/src/sssom_schema/schema/sssom_schema.yaml
index 877ae9e5..d9461655 100644
--- a/src/sssom_schema/schema/sssom_schema.yaml
+++ b/src/sssom_schema/schema/sssom_schema.yaml
@@ -72,6 +72,20 @@ types:
       - https://mapping-commons.github.io/sssom/spec/#tsv
 
 slots:
+  prefix_name:
+    key: true
+    range: ncname
+  prefix_url:
+    range: uri
+  curie_map:
+    description: A dictionary that contains prefixes as keys and their URI expansions as values.
+    range: prefix
+    multivalued: true
+    inlined: true
+    see_also:
+      - https://github.com/mapping-commons/sssom/issues/225
+      - https://github.com/mapping-commons/sssom/pull/349
+      - https://github.com/mapping-commons/sssom/blob/master/examples/schema/curie_map.sssom.tsv
   mirror_from:
     description: A URL location from which to obtain a resource, such as a mapping set.
     range: uri
@@ -627,6 +641,7 @@ classes:
       license:
         required: true
     slots:
+    - curie_map
     - mappings
     - mapping_set_id
     - mapping_set_version
@@ -770,6 +785,12 @@ classes:
       - mapping_set_group
       - last_updated
       - local_name
+
+  prefix:
+    slots:
+      - prefix_name
+      - prefix_url
+
   Propagatable:
     class_uri: sssom:Propagatable
     description: Metamodel extension class to describe slots whose value can be